人教版高中英语unit5Music介词+关系代词引导的定语从句语法课件要点.ppt

Unit 5 Music  Grammar “介词 + 关系代词”引导的定语从句 “介词 + 关系代词”引导的定语从句是定语从句中较复杂的一种，多用于正式文体中。这类定语从句的关系代词主要有 which， whom， whose 。它们既可引导限定性定语从句，又可引导非限定性定语从句。同学们在学习这种定语从句时要注意以下几种情况： 一、注意介词的选取 “介词” + “关系代词”引导的定语从句中，介词的选取应根据如下几点： 1 ．根据介词和定语从句中谓语动词的习惯搭配。 如： ? Who is the man with whom you just shook hands？ 刚才和你握手的人是谁？ ? The two things about which Marx was not sure were the grammar and some of the idioms. 马克思不大有把握的两个方面是语法和某些习惯用语。  1 . In the dark street there wasnt a single person_____ she could turn for help. A. that B. who C.from whom D.to whom  2 ．根据定语从句意思的需要，此时不但要注意其前的搭配也要注意其后的搭配。 如： ? He had a bad cold， because of which he didnt attend the meeting. 他患了重感冒，因此未能参加会议。 ? The speed at which the car runs depends on the road condition. 这辆车的速度要根据路面状况而定。  2 . In the office I never seem to have time until after 5:30 p.m.，_______ many people have got home. 　　 A. whose time B.that C. on which D. by which 　 3. 根据意思也可用复杂介词，如 by means of ，as a result of， in front of， in the back of ，all of ， most of 等，如： (1) The instrument by means of which the temperature is measured is called thermometer. 用来测量温度的仪器叫温度计。 （ 2 ） There are forty students in the classroom， all of whom are working hard at a problem in mathematics. 教室里有四十个学生，他们都在努力计算一道数学难题。 二、注意关系代词的选取 　　 在“介词 + 关系代词”引导的定语从句中，如果关系代词指代事物就用 which; 如果指代人则用 whom; 若表示“……的”则用 whose。 如： 1.This is the classroom in which we studied last year. 这就是我们去年学习的教室。 2.There are sixty students in our class， twenty of whom are girls. 我们班有六十个学生，其中二十个是女生。 3.He lives in a house， whose door opens to the north. 他住的房子门是朝北开的。  1 . He paid the boy ＄ 10 for washing the windows， most of _____ hadnt been cleaned for at least a year.(MET1990) A. those B. these C. that D. which 2 . The gentleman _____ you told me yesterday proved to be a thief. （上海 2000 春招） A .who B. about whom C.whom D.with whom